/**
 * Mobile-first social UI — Nexus (feed, explore, profile, the web, signals)
 * Bottom tab bar + touch-friendly layout. Active below 768px.
 */

/* ——— Breakpoint: mobile social mode ——— */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }

    .feed-page .feed-main,
    .feed-page.the-web-page .feed-main,
    .feed-page.explore-page .feed-main,
    .profile-page .feed-main,
    .signals-page .feed-main {
        padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px));
    }

    .feed-page .feed-center,
    .feed-page.the-web-page .the-web-center,
    .feed-page.explore-page .explore-center,
    .profile-page .profile-main,
    .signals-page .signals-main {
        padding-left: 0;
        padding-right: 0;
        max-width: 100%;
    }

    /* Tighten space between top nav and stories */
    .feed-page .feed-stories {
        padding-top: 0.1rem;
        padding-bottom: 0.6rem;
    }

    /* Slightly smaller top header on mobile to maximize content */
    .feed-page .main-header .header-container,
    .feed-page.the-web-page .main-header .header-container,
    .feed-page.explore-page .main-header .header-container,
    .profile-page .main-header .header-container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .feed-page .nav-tag-link,
    .feed-page.the-web-page .nav-tag-link,
    .feed-page.explore-page .nav-tag-link {
        display: none;
    }
}

/* ——— Bottom navigation (mobile only) ——— */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    background: rgba(10, 10, 10, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 200;
    padding-bottom: env(safe-area-inset-bottom, 0px);
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
        align-items: stretch;
        justify-content: space-around;
    }
}

@media (min-width: 769px) {
    .mobile-bottom-nav {
        display: none !important;
    }
}

.mobile-bottom-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-around;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 0.25rem;
}

.mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-width: 0;
    padding: 0.4rem 0.25rem;
    text-decoration: none;
    color: var(--text-muted);
    font-family: 'Hudson', sans-serif;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px;
}

.mobile-bottom-nav-item i {
    font-size: 1.25rem;
    margin-bottom: 0.2rem;
    display: block;
}

.mobile-bottom-nav-item:hover,
.mobile-bottom-nav-item:focus {
    color: var(--text-light);
}

.mobile-bottom-nav-item.active {
    color: var(--primary-green);
}

.mobile-bottom-nav-item.active i {
    color: var(--primary-green);
}

/* Badge on Alerts */
.mobile-bottom-nav-item[data-badge] {
    position: relative;
}

.mobile-bottom-nav-item[data-badge]::after {
    content: attr(data-badge);
    position: absolute;
    top: 0.1rem;
    right: 50%;
    transform: translate(12px, 0);
    min-width: 14px;
    height: 14px;
    padding: 0 4px;
    background: var(--primary-green);
    color: var(--dark-bg);
    font-size: 0.55rem;
    font-weight: 700;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Touch targets: ensure tappable areas are at least 44px */
@media (max-width: 768px) {
    .feed-post,
    .feed-nav-item,
    .explore-tile,
    .profile-grid-item,
    .the-web-event,
    button.feed-story-item {
        min-height: 44px;
    }

    .feed-center {
        padding-left: 0;
        padding-right: 0;
    }

    /* Single feed only: hide mode toggle; show tabs above feed */
    .feed-page .feed-feed-bar {
        display: none !important;
    }

    .feed-page .feed-single .feed-tabs {
        display: flex;
        justify-content: stretch;
        margin-bottom: 0.75rem;
        padding: 0 0.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .feed-page .feed-single .feed-tab {
        flex: 1;
        padding: 0.7rem 0.5rem;
        font-size: 0.7rem;
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .feed-page .feed-section,
    .feed-page .feed-section.feed-section--dual {
        max-width: 100%;
        padding-top: 0.25rem;
        padding-bottom: 3rem;
    }

    .feed-page .feed-single {
        max-width: 100%;
        padding: 0;
        width: 100%;
    }

    .feed-page .feed-single .feed-container {
        padding: 0;
        max-width: 100%;
    }

    .feed-page .feed-single .feed-list {
        gap: 0;
    }

    /* Full-frame 9:16 posts — edge-to-edge, no card chrome */
    .feed-page .feed-post {
        max-width: none;
        width: 100%;
        margin: 0;
        border-radius: 0;
        border-left: none;
        border-right: none;
        clip-path: none;
    }

    .feed-page .feed-post-media {
        aspect-ratio: 9 / 16;
        width: 100%;
    }

    .feed-page .feed-post-body {
        padding: 0.75rem 1rem;
    }

    .feed-page .feed-post-comments-preview {
        display: none;
    }

    /* Ensure overlay sits on top of media (Safari stacking) */
    .feed-page .feed-post-media {
        position: relative;
        isolation: isolate;
    }

    .feed-page .feed-post-header-overlay {
        position: absolute !important;
        left: 0.5rem !important;
        right: 0.5rem !important;
        top: 0.5rem !important;
        display: flex !important;
        flex-direction: row !important;
        justify-content: space-between !important;
        align-items: center;
        z-index: 2;
        pointer-events: none;
    }

    .feed-page .feed-post-header-overlay .feed-post-author {
        pointer-events: auto;
    }

    /* Match localhost: creator name white (not blue), actions legible */
    .feed-page .feed-post-header-overlay .feed-post-username {
        color: #fff !important;
    }
    .feed-page .feed-post-body .feed-post-caption-author,
    .feed-page .feed-post-body .feed-post-caption-text {
        color: #fff !important;
    }
    .feed-page .feed-post-body .feed-post-actions .feed-post-action,
    .feed-page .feed-post-body .feed-post-actions .feed-post-action i,
    .feed-page .feed-post-body .feed-post-actions .feed-post-action span {
        color: #e0e0e0 !important;
    }
    .feed-page .feed-post-body .feed-post-actions .feed-post-action.liked,
    .feed-page .feed-post-body .feed-post-actions .feed-post-action.liked i,
    .feed-page .feed-post-body .feed-post-actions .feed-post-action.liked span {
        color: #ff6b9d !important;
    }
    .feed-page .feed-post-body .feed-post-time {
        color: #b0b0b0 !important;
    }

    /* Track: always right, transparent pill (override Safari defaults) */
    .feed-page .feed-post-header-overlay .feed-post-track {
        -webkit-appearance: none;
        appearance: none;
        margin-left: auto;
        pointer-events: auto;
        background: rgba(0, 0, 0, 0.25) !important;
        border: 1px solid rgba(255, 255, 255, 0.65) !important;
        border-radius: 999px;
        padding: 0.5rem 1.2rem;
        font-size: 0.8rem;
        color: #fff !important;
        font-family: 'Hudson', sans-serif;
        text-transform: uppercase;
        letter-spacing: 0.08em;
    }

    /* Hide duplicate author if old markup has it in body */
    .feed-page .feed-post-body .feed-post-author {
        display: none !important;
    }

    .feed-page .feed-post-time {
        font-size: 0.75rem;
        margin-top: 0.35rem;
    }

    .feed-page .feed-post-actions {
        gap: 1.75rem;
    }

    .feed-page .feed-post-actions .feed-post-action i {
        font-size: 1.25rem;
    }

    .feed-page .feed-post-actions .feed-post-action span {
        font-size: 0.9rem;
    }

    /* Fullscreen post detail — rebuild: overlay has explicit height, one fullscreen div fills it */
    .feed-page #postDetailModal.feed-modal-overlay {
        padding: 0;
        align-items: stretch;
        justify-content: stretch;
        background: #000;
        top: 0;
        left: 0;
        right: 0;
        bottom: calc(56px + env(safe-area-inset-bottom, 0px));
        height: calc(100vh - 56px - env(safe-area-inset-bottom, 0px));
        min-height: 0;
    }

    .feed-page #postDetailModal .feed-modal {
        position: relative;
        flex: 1 1 0;
        min-height: 0;
        max-width: none;
        max-height: none;
        width: 100%;
        border: none;
        clip-path: none;
        border-radius: 0;
        background: transparent;
        overflow: hidden;
    }

    .feed-page #postDetailModal .feed-modal-header {
        display: none;
    }

    .feed-page #postDetailModal .feed-modal-body-post {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        padding: 0;
        max-height: none;
        overflow: hidden;
    }

    .feed-page #postDetailModal .feed-detail-fullscreen {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
    }

    .feed-page #postDetailModal .feed-detail-fullscreen .feed-detail-media {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100% !important;
        max-width: none !important;
        max-height: none !important;
        min-width: 0;
        min-height: 0;
        aspect-ratio: unset !important;
        flex: none !important;
    }

    .feed-page #postDetailModal .feed-detail-fullscreen .feed-detail-media video {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100% !important;
        height: 100% !important;
        max-width: none;
        max-height: none;
        object-fit: cover;
        display: block;
    }

    .feed-page #postDetailModal .feed-detail-sidebar {
        display: none !important;
    }

    .feed-page #postDetailModal .feed-detail-overlay-top {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        padding: max(0.75rem, env(safe-area-inset-top)) 1rem 0.5rem;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        z-index: 4;
        pointer-events: none;
    }

    .feed-page #postDetailModal .feed-detail-back-btn {
        pointer-events: auto;
        -webkit-appearance: none;
        appearance: none;
        width: 44px;
        height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(0, 0, 0, 0.35);
        border: 1px solid rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        color: #fff;
        font-size: 1.2rem;
        cursor: pointer;
    }

    .feed-page #postDetailModal .feed-detail-overlay-bottom {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 1rem max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 1rem;
        z-index: 3;
        pointer-events: none;
        min-height: 0;
    }

    .feed-page #postDetailModal .feed-detail-bottom-left {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
        pointer-events: auto;
    }

    .feed-page #postDetailModal .feed-detail-author-row {
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 0.5rem;
    }

    .feed-page #postDetailModal .feed-detail-author-row .feed-post-author {
        margin: 0;
    }

    .feed-page #postDetailModal .feed-detail-author-row .feed-post-avatar {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        border: 2px solid rgba(255, 255, 255, 0.8);
    }

    .feed-page #postDetailModal .feed-detail-author-row .feed-post-username {
        color: #fff;
        font-weight: bold;
        font-size: 0.85rem;
        text-shadow: 0 0 8px rgba(0, 0, 0, 0.8);
    }

    .feed-page #postDetailModal .feed-detail-track-btn {
        pointer-events: auto;
        -webkit-appearance: none;
        appearance: none;
        padding: 0.35rem 1rem;
        background: rgba(0, 0, 0, 0.35);
        border: 1px solid rgba(255, 255, 255, 0.8);
        border-radius: 999px;
        color: #fff;
        font-family: 'Hudson', sans-serif;
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
    }

    .feed-page #postDetailModal .feed-detail-caption-snippet {
        flex: 0 0 auto;
        min-width: 0;
        margin: 0;
        font-size: 0.9rem;
        line-height: 1.4;
        color: #fff;
        text-shadow: 0 0 10px rgba(0, 0, 0, 0.9);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .feed-page #postDetailModal .feed-detail-overlay-bottom .feed-detail-actions-overlay {
        position: static;
        transform: none;
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1.25rem;
    }

    .feed-page #postDetailModal .feed-detail-actions-overlay .feed-post-actions {
        flex-direction: column;
        gap: 1.25rem;
    }

    .feed-page #postDetailModal .feed-detail-actions-overlay .feed-post-action {
        pointer-events: auto;
        color: #fff !important;
        font-size: 1rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.2rem;
        background: none;
        border: none;
        padding: 0.25rem;
    }

    .feed-page #postDetailModal .feed-detail-actions-overlay .feed-post-action i {
        font-size: 1.6rem;
    }

    .feed-page #postDetailModal .feed-detail-actions-overlay .feed-post-action span {
        font-size: 0.8rem;
        font-weight: 600;
    }

    .feed-page #postDetailModal .feed-detail-actions-overlay .feed-post-action.liked {
        color: #ff6b9d !important;
    }
}